Chromium(III) acetate

Chromium(III) acetate, commonly known as basic chromium acetate,^[2] describes a family of salts where the cation has the formula [Cr₃O(O₂CCH₃)₆(OH₂)₃]⁺. The trichromium cation is encountered with a variety of anions, such as chloride and nitrate. Data in the table above are for the chloride hexahydrate, [Cr₃O(O₂CCH₃)₆(OH₂)₃]Cl(H₂O)₆.

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Chromium(III) acetate

Names
IUPAC name Chromium(III) acetate hydrate
Other names chromic acetate, chromium triacetate, chromium(III) ethanoate
Identifiers
CAS Number	32591-52-9 Y
3D model (JSmol)	Interactive image
ChemSpider	13394 Y
ECHA InfoCard	100.012.646
PubChem CID	14012
CompTox Dashboard (EPA)	DTXSID4020327
InChI InChI=1/2C2H4O2.Cr/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2 Key: LRCIYVMVWAMTKX-NUQVWONBAT
SMILES O1C(C)=[O+][Cr-3]6(O23)([OH2+])([O+]=C(C)O4)[O+]=C(C)O[Cr-3]24([OH2+])([O+]=C(C)O5)[O+]=C(C)O[Cr-3]135([OH2+])[O+]=C(C)O6
Properties
Chemical formula	C12H36ClCr3O22
Molar mass	723.84 g·mol−1
Appearance	grayish-green to blueish-green solid
Density	1.662 g/cm3
Melting point	1,152[1] °C (2,106 °F; 1,425 K)
Magnetic susceptibility (χ)	−5104.0·10−6 cm3/mol
Structure
Coordination geometry	octahedral
Related compounds
Related compounds	Manganese(III) acetate Iron(III) acetate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

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Salts of basic chromium acetate has long attracted interest because of its distinctive structure, which features octahedral Cr(III) centers, a triply bridging oxo ligand, six acetate ligands, and three aquo ligands.^[2] The same structure is shared with basic iron acetate and basic manganese acetate.^[2][3] Little evidence exists for a simple chromium(III) acetate, i.e. lacking the oxo ligand.^[4] Chromium(III) acetate is a blue/grey-green powder, which is soluble in water. It is still^[3] prepared according to the original procedure from 1909.^[5]